科研之友
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摘要
Bis(2-ethylhexyl) phosphate (IIDEHP) as an acidic extractant was impregnated onto a polymer chain grafted onto a 6-nylon fiber at a density of 0.43 mollkg-product. Neodymium and dysprosium ions loaded onto the fiber packed into a bed were separated by elution chromatography using 0.2, 0.3, and 1.534 hydrochloric acid as an eluent. At various space velocities and loaded amounts, the HDEHP-impregnated fiber-packed bed exhibited a higher peak height and a narrower half width because of shorter dilfusional mass-transfer path of ions and larger external area per volume. The leakage of HDEHP impregnated was found to be negligible.
- 出版日期2015
